Laitram, LLC

Hartness International, Inc.

Illinois Tool Works Inc.

Joseph M Depaso

Paul L Horton

John C Hawkins, Jr

David W Bogle

Angela Longo Marshall

Jeff Batchelder

Edward T Mol

Eric M Pressler

R Scott Dailey

Richard M Klein

Laurentius Gj Wolters

Michael Hendrik Degroot

Friso Antonius Oonk

Timothy J Deroche

Gilbert J Maclachlan

James R Honeycutt

A sprocket drive system for a modular conveyor belt that compensates for drive-shaft twist under load. The drive system includes a plurality of belt drive surfaces spaced apart across the width of the underside of each row of a modular conveyor belt. A drive shaft supports a group of sprockets at spaced-apart locations. Sprocket drive surfaces are spaced apart circumferentially around the peripheries of the sprockets and arranged in rows across the sprocket to engage corresponding belt drive surfaces in the belt rows. The belt is wrapped around the sprockets on the drive shaft. The engagement of the sprocket drive surfaces with the belt drive surfaces drives the belt. Either the sprocket drive surfaces or the belt drive surfaces, or both, in each row are arranged in an out-of-phase relationship with each other when the conveyor belt is at no load. Once the conveyor belt is operating at load and the shaft twists, the drive surfaces assume an in-phase relationship for improved belt driving and tracking.

Compensation for shaft twist in the drive system of modular conveyor belts

Apparatus for diverting a stream of articles from one conveyor to another parallel conveyor moving in an opposite direction in a conveyor bed. A diverter element is attached to a carrier that is driven along a path parallel to the two conveyors by a differential drive mechanism coupled to the drive mechanisms of the two conveyors. The differential drive mechanism responds to the difference in the speeds of the two conveyor drive mechanisms to drive the carrier and position the diverter element along the parallel conveyors. The diverter element extends at least partway across the widths of the two conveyors to guide articles on one conveyor to the other. In a preferred version, the carrier is an endless conveyor belt to which the diverter element is attached, and the differential drive mechanism includes a shaft arranged coaxially with drive or idler sprocket shafts of the conveyor belts at each end of the bed. The apparatus is useful in accumulating articles transported on a main conveyor in a first-in, first-out fashion.

Apparatus for diverting a stream of articles

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Gretna, LA, United States of America

Joseph M Depaso